No - only the original artist has the rights to the song - unless it has been re-sold to another artist or record label.
YouTube poop is the name that is given to certain types of videos that can be found on YouTube. These videos are usually random and nonsensical. They are often clips of other videos that have been looped or remixed to make a single one.
There are many remixed versions of popular songs on Youtube. You might also find remixed songs on Soundcloud, but these might not be as good quality as the ones found on Youtube.
Popstars Remixed was created in 2001.
Verve Remixed was created in 2003.
Bond Remixed was created in 2001.
Remixed Affairs was created in 1998.
Janet Remixed was created in 1992.
Bajofondo Remixed was created in 2006.
Rent Remixed was created in 2007.
Intimacy Remixed was created in 2008.
Turn It Out Remixed was created on 2003-03-19.
Pirates Remixed was created on 2006-06-20.